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About Registration
142 iPlanet Integration Server • Process System Guide • August 2001
4. Follow the instructions for registering iIS distributions in “Registering iIS
Distributions” on page 144.
What Does Unregistration Do?
Unregistering process definitions, assignment rules, user profiles, or a validation
does not reverse the entire registration process, just the last step of the process: it
removes the registration entry from an engine’s registration database table. It does
not remove the shared library files installed on the engine server node, nor does it
delete the library distribution from the environment repository (where they are
placed in order to be installed on engine server nodes). You can delete a library
distribution from the environment repository using the Conductor Script
Uninstall command (see “Uninstall” on page 321).
Engine Registration Manager
Each engine has a Registration Manager that tracks library distributions registered
with the engine. The manager ensures that all engine references to a library are to
the most current registered version of the library.
For example, if you register a new version of a process definition with an engine,
all subsequent instances of that process definition created by that engine are based
on the new version. Process instances based on the older version, however,
continue to execute to completion (process termination). When instances of the
older version no longer exist, the engine registration manager automatically
unregisters the old process definition.
When you register a new version of an assignment rule dictionary with an engine
that has an older version already registered, the new versions of assignment rules
are retroactively applied to all existing offered and queued activities. Offered
activities are offered again to sessions based on the new rules, and access to
activities in queues becomes governed by the new rules. The engine registration
manager automatically unregisters the old versions of any assignment rules
included in the new assignment rule dictionary.
Unregistering a library distribution removes the corresponding entry from the
registration database table but does not delete the library files from the engine
unit’s host server node.